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Messages - 6667fan

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FE Technical Forum / Re: Can you ID these headers?
« on: August 14, 2022, 11:57:04 AM »
Front two cylinders each side look like 66-69 intermediate and likely 67/68 Mustang  but the crossover business might narrow down which chassis, (or not).

I thought Thorley used numbers like that but not certain. Are those 2” O.D.?

Drag Strip Results for FE Powered Vehicles / Re: racing my 66 Comet
« on: August 13, 2022, 10:58:23 AM »
Jim, whenever I doubt that the secondaries aren’t opening I put a paper clip under the pod onto the actuating rod. If the rod goes up,(indicating at least that there is movement of the diaphragm), the clip will be pushed down lower onto the rod by coming in contact with the underside of the pod body. The clip should end up close to the throttle shaft end of the rod.
This test has to be done under a load of course.

Drag Strip Results for FE Powered Vehicles / Re: racing my 66 Comet
« on: August 09, 2022, 08:02:21 AM »
Well, I guess you could experiment with the 780. Different, tunable metering blocks might net different results but it’s not like you need to with the performance the 1050 is giving.

The header extensions are a tuning device? Just curious if any passes were made without them. I realize the reversion factor could go up and skew your sensor numbers.

Drag Strip Results for FE Powered Vehicles / Re: racing my 66 Comet
« on: August 08, 2022, 09:44:23 PM »
Are those A/F numbers through the traps? What did the 1050 show for A/F at the same rpm you are noting for the 780?
Where is your A/F sensor located?

Is  the “pull” on the 780 so strong that it is causing the carb to dump more fuel than it can use?

At least you know the combo likes the 1050

FE Technical Forum / Re: Keeping your cool
« on: August 04, 2022, 10:13:34 PM »
Running original radiator in my Fairlane, 390/AC car. People at cruises look at it and ask, does that little thing keep that 482 cool?
Overdriving your water pump is inexpensive and easy to do. I found a small water pump pulley, (around 6” OD). The engine cooled down so much I changed my thermostat from a 180 to a 192 version. The ratio between wp pulley and crank pulley needs to be 1 to 1.25 or higher.

I do have a Crites hood with the fresh air opening in front and cut back shock towers but I had those when the engine used to go up to 215 degrees with a clutch fan. ( flex fan currently).

New low ET on a tough day.

FE Engine Dyno Results / Re: Stangman 486 BT 2x4
« on: August 02, 2022, 10:50:51 AM »
Thanks Doug for hooking in those sheets.

I hope Blair sees this but anyone can answer.

How does brake specific fuel consumption translate to A/F?  Are there BSFC numbers that are desirable from a WOT perspective such as dyno pulls?


Non-FE Discussion Forum / Re: Horsepower guesses
« on: July 30, 2022, 10:07:35 PM »
That is going to be a lot of fun Joe! Great numbers.

You are gonna need a roll bar if you go to any NHRA track where the tech guys are watching. IIRC you were going low 11s before. Anything quicker than 11.5 needs at least a roll bar. 10.00 -10.99  needs a cage but if there are no structural mods past the firewall, ( excepting wheel tubs), than a six point bar is allowed.
( please consult the latest NHRA rule book to confirm this).

Get ‘er done

Non-FE Discussion Forum / Re: A/F ratio gauge
« on: July 26, 2022, 09:09:55 PM »
I would not recommend Innovate, ( have had them in several cars and they are too temperamental). When they work, they work fine but that does not happen consistently enough for me.

Sticking a sensor in the tailpipe has its downfalls. I think the best chance for accuracy is in a steady stream environment without any risk of dilution.

That is interesting what Jay shared about the Sensors.

Non-FE Discussion Forum / Re: Horsepower guesses
« on: July 26, 2022, 09:04:47 PM »

Similar build to mine, slightly less compression.

Good Luck!

FE Technical Forum / Re: High compression ratio
« on: July 24, 2022, 09:20:47 PM »
Greg, that is another product in their line. The Ultra will ramp up the octane even more. You may be fine with the 105.
I don’t run the Ultra at the full dosage. I can tell when I need to add some to the 93 that is available here.

Good luck

FE Technical Forum / Re: 397ci Tunnel Port Dyno Mule Build
« on: July 24, 2022, 10:04:40 AM »
Brent, take a look at the rear bulkhead on that block. Likely will have a large raised P on it.
I have one here that was cast 15 days later. Also shopped a 6/15 block like you have there a few years back but did not land it.
How is the sonic map on it?

FE Technical Forum / Re: High compression ratio
« on: July 24, 2022, 09:58:10 AM »
Race Gas Ultra quieted things down for me. ( 11.3 compression as shown by Whistler).
A box of 6 quarts goes for around $175.00

FE Technical Forum / Re: Help with vague return to idle
« on: July 22, 2022, 08:08:56 AM »
When it is in the 700-1200 range is it fluctuating or could it be any of those rpms in that range that it settles on?

What the video doesn’t show is the crowd’s reaction when Dennis’ wagon comes down the return road, ( which is right in front of the bleachers at Lebanon Valley). Win or lose, fast or not as fast, people just love seeing that thing making passes. I know I do.

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